<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <link rel="stylesheet" href="./iconfont/iconfont.css">
</head>
<style>
    .iconfont {
        font-size: 200px;
        color: red;
    }

    .iconfont .icon-icon-test2 {
        font-size: 100px;
        color: orange;
    }
</style>
<body>
    <span class="iconfont icon-icon-test2"></span>
</body>
</html>